The term "arteria rectalis" is a medical term that refers to the rectal artery that supplies blood to the rectum. There are a few synonyms for this term, including the rectal artery, the inferior rectal artery, or the hemorrhoidal artery. These terms are often used interchangeably and refer to the same blood vessel. The rectal artery is a small but crucial vessel that plays a vital role in maintaining the health of the rectum. It is important for medical professionals to understand these different terms and their meanings to ensure accuracy and precision in diagnosis and treatment of rectal and hemorrhoidal conditions.